NVIDIA GeForce GTX 780 6 GB vs NVIDIA GeForce GTX 745 OEM

VS

NVIDIA GeForce GTX 780 6 GB

NVIDIA GeForce GTX 745 OEM

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 780 6 GB and 4GB VRAM GeForce GTX 745 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 6 GB 's Advantages

Boost Clock902MHz

More VRAM (6GB vs 4GB)

Larger VRAM bandwidth (288.4GB/s vs 28.80GB/s)

1920 additional rendering cores

NVIDIA GeForce GTX 745 OEM 's Advantages

Lower TDP (55W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 6 GB +424%

4.156 TFLOPS

GeForce GTX 745 OEM

0.793 TFLOPS

GeForce GTX 780 6 GB

VS

GeForce GTX 745 OEM

Graphics Card

Sep 2013

Release Date

Feb 2014

GeForce 700

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

863 MHz

Base Clock

-

902 MHz

Boost Clock

-

1502 MHz

Memory Clock

900 MHz

Memory

6GB

Memory Size

4GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

288.4GB/s

Bandwidth

28.80GB/s

Render Config

-

2304

Shading Units

384

192

TMUs

24

48

ROPs

16

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

1536 KB

L2 Cache

2 MB

-

Theoretical Performance

43.30 GPixel/s

Pixel Rate

16.53 GPixel/s

173.2 GTexel/s

Texture Rate

24.79 GTexel/s

-

4.156 TFLOPS

FP32 (float)

793.3 GFLOPS

173.2 GFLOPS

FP64 (double)

24.79 GFLOPS

Board Design

250W

TDP

55W

600 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 2.0 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110B

GPU Name

GM107

GK110-301-B1

GPU Variant

GM107-220-A2

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

1.87 billion

561 mm²

Die Size

148 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

5.0

5.1

Shader Model

5.1

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